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Re: [Qemu-devel] [PATCH v3] intel_iommu: check misordered init when real

From: Peter Xu
Subject: Re: [Qemu-devel] [PATCH v3] intel_iommu: check misordered init when realize
Date: Wed, 8 Mar 2017 16:59:17 +0800
User-agent: Mutt/1.5.24 (2015-08-30)

On Wed, Mar 08, 2017 at 03:35:50AM -0500, Paolo Bonzini wrote:


> The ordering should be explicit in the command line.  Since we do not have
> cycles, it should be possible.

Current QEMU should have no restriction on parameter ordering, right?
Or do we have any existing case that:

  "$QEMU -parameter1 -parameter2"

will work, while...

  "$QEMU -parameter2 -parameter1"

won't work?


> The best solution would have been to add something like
>    -device intel-iommu,id=root-complex-iommu -global 
> mch.iommu=root-complex-iommu
> but it's too late for that.

-- peterx

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